Is it true what Trump supporters say?

no, but that is their mentality.

You shouldn't drink Corona on any occasion. It's sh!t.

Its neither true that it is a valid reason for not drinking corona beer nor is it true that people who support the Trump Presidency have a particular correlation to people that believe any such nonsense.
However if you drink alcohol it may weaken your immune system.

Around here we can't afford the coronavirus, we'll probably end up with the buschlitevirus.

Corona only means multi-colored, as in corona color TV.

i dont think so, the beer has nothing to do with the virus

im not for sure if his supporters said it but it is true that alot of people are scared to drink corona beer because of the the name of the virus

Fake news...........

It's an election year, the MSM is trying to create mass hysteria about the Corona virus so as to hurt Trump.