I read this satirical thread about what would happen if Wikipedia didn't make money from donations and had to get acquired by a company like Comcast and thought, hm, I'd rather that not happen. I donate every year. https://old.reddit.com/r/WritingPrompts/comments/2ov45h/wp_w...
Wikipedia has far more money then they know what to do with, their entire foundation is very affluent and there is no risk of them facing any hardship. Your donations have exactly zero influence on Wikipedia staying up or even staying independent. Your money goes into a web of charities (undisclosed which exactly), at best some poor people might profit of a few percentage points of your money, why not just donate to some real charity instead.