People calling mc "weak", shit he got through would make anyone depressed and lacking self esteem.
Yandere are only good in one thing, unquestionably loving someone which is a kinda basic thing in healthy relationship to some extent, the drawback is having no life whatsoever and being controlled at every step like it's clearly seen.
Only spineless subs might find this interesting or lacking any free will of their own and any needing constantly being guided throughout their lives.