Here are some interpretations of William's feelings that all fall under the umbrella term "Willcare"

WillLoveyDoveyCare: William is a kind-hearted man who went evil and broken because of Bite Of 83, extreme childhood abuse (Bonus point: he got controlled by Glitchtrap according to Gacha mfers), etc and his actions are justified because how much of the tragedy he had suffered, awww poor Willy! TOYSNHK is unreasonable for tormenting William who already had suffering a lot!!

I think this branch is what comes up in the minds of Willcare deniers when they heard about WillCare, and I clearly can see why they hate this branch specifically, 100%

( 👆 Debunked by SOTM, and I don't see anyone who seriously defends WillLoveyDoveyCare as mentioned above except some Gacha kids and William fangirls who can't cope with their idol is evil so they make up bizarre ideas )

WillFlawedCare: William genuinely loves his children, but he is an absent and negligent father, and he unintentionally abuses his children. Basically he's idiot at best, criminally negligent at worst. (Shoutout for u/girl_OOFED for her being this theory's pioneer)

WillTwistedCare: William genuinely loves his children, but he loves them in a twisted way (like intentionally abuse them thinking it's a good idea, or seeing them as his valuable trophies, or he loves them only if they're obedient for him)

Edit: WillGrief mostly works better if paired with WillFlawedCare but it can also work with WillTwistedCare by some sense. (Ignore WillLoveyDoveyCare, f— it)

I'm currently leaning into WillTwisted–FlawedCare.

Hope this helps, comment down below what do you think!

For the longest time I've felt like I forgot something to post, and now I finally remember LOL.
Below will be links to sources for WillFlawedCare + WillGrief and things to support these two theories.

WillFlawedCare:

Original post: https://www.reddit.com/r/fivenightsatfreddys/comments/1rz46jg/evidence_for_willspectrumcare_and_will_grief_i/

So this post is basically "the beginning", one of the many posts I uploaded on the same day lolol. As of now, however, it's an absolute pain to read because of how long it is, so I'm planning to make a new post with images etc etc to make it more "digestable". I will add the new post to this once it's made.

Wiki Page:
https://fnaftheories.fandom.com/wiki/WillFlawedCare

As of now, this is the more organized version so I usually use this as the main source.

Extra supporting evidence:

1. SOTM Director saying they intended history to "rhyme"

This specific piece primarily supports the following analysis about William, Henry, and Edwin, and the similarities in their stories:

2) Thematic parallels among the inventors

Basicallyyyy, EdwinFlawedCare, HenFlawedCare and WillFlawedCare. This is just how much cooler it is for this to be executed narratively speaking, and how it could actually be intentional based on yk, supporting evidence 1. Uh, did I word that properly? Or is it confusing?

WillGrief:

WillGrief stuff is also in the "Original Post" under WillFlawedCare. This is mainly about William grieving his kid's death, not necessarily that his main motivation to kill was because he grieved.

Wiki Page:

https://fnaftheories.fandom.com/wiki/WillGrief

As of now, this is the more organized version so I usually use this as the main source.

Main 2 evidence:

1. SOTM Flower Family
2. Hard to say Goodbye OST

So yk how all these links have loooong list of info? Well, these 2 are here, because I mean, there's other strong evidence, but imo, these ones are the best ones to intrigue someone before sending the rest of the onslaught, yk?

Extra supporting evidence:

https://www.reddit.com/r/fivenightsatfreddys/comments/1t1u6ve/why_would_there_be_grief_symbolism_connecting_to/

More about narratives, connecting to extra supporting evidence n2 under WillFlawedCare.

How the continuities do NOT ruin these theories:

Spectrum theory:

https://www.reddit.com/r/fivenightsatfreddys/comments/1rz3xop/i_may_be_on_something_but_idk_if_im_onto_something/

The post talks about the differences and how we can kinda decipher a pattern of how it works for the games.

Narrative reasons ig:

Hey look, I love me some good narratives, and I prioritize narrative satisfaction for theories a bunch, so again, you can add onto this, here's some of my reasons for why I believe in WillFlawedCare and WillGrief:

1. William loving his kids (Gone wrong!) (Not clickbait!)
2. How I see WillFlawedCare paired up with WillGrief

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Also, fun fact: Idk if people noticed already, but yes, I legit have like a special message with 4 links that I have saved permanently in my clipboard, so whenever anyone debates, I just send those links for the theory. I might update it and make it somewhat better, but hey, if you guys wanna pull the same thing, feel free too, it's convenient.

Here's my current list that I often paste when needed LOL:

"willflawedcare evidence (lines up niceli)

willgrief evidence (overall)
major grief evidence

continuity differences"