Why does this make Erdogan a fool?

Because when western leaders want to censor information, they claim said information is a "threat to democracy", and everyone just trusts them. (not that it would work - it seems like turkish people actually know how to protest)

What a weird comment

Erdogan has for past the decade regularly arrested critical journalists and opposition politicians on very flimsy trumped up charges.

In America there is a massive and lucrative media industry dedicated to attacking whichever politician/party happens to be in power, alongside half of social media at any given time. It's pretty clear political freedom in the West is much stronger than in Turkey right now

Because people can downvote things when they simply do not like your opinion disregarding of merits.