Her career fell off hard
Nice bad career choices and coming off as so unlikable in person
sharelots of factors
demanding too much money then the movies tanking
talking shit about xmen and phoning in her performance in apocalypse when she got that hunger games fame thinking she didn't need it and her career seemed to be on the up and up, then when her career flatlined begging to come back for dark phoenix and acting like she was excited for it all along.
lastly she just isn't that good an actress.. she's not horrible she's just not good in any way