For anything even remotely controversial, I stick exclusively with primary sources and ignore Wikipedia. The site is clearly compromised by admins who only want left-leaning secondary sources summarized. If you come across a controversial topic with biased, or even faulty information, the admins will remove edits which don’t comply with their bias, ban persistent users, and eventually “protect” the article. Even one of the co-founders has railed against the current state of the site.
It really should. I'm a PhD student (which does not overly qualify me anyway) but the more I look into works with quantitative measuring methods, the more I have a hard time trusting polls and statistics in general. Even in academic papers, or at least the ones I reviewed, more often than not the data is massaged in some way and leaves a lot to be desired.
It's best to immediately get suspicious if a polling company is owned by some parent firm with a clear conflict of interest.