Wikipedia is extremely biased and, more important, it is not the internet. If you teach people that internet is cable tv 2.0 very bad things will happen.
What bias? I’ve seen Wikipedia editors working round the clock to prevent bias and vandalism from appearing on pages about controversial people such as Martin Shkreli
There is research comparing wikipedia to encyclopaedia britannica which concludes that wikipedia has more "left code words" per article than EB.
However
a) this research is very US-centric
b) the paper also concludes that code word per word is pretty much equal between the two, wikipedia just has longer articles