This is not exactly true. I mean it is true that many many diseases are caused by animal products, or are exacerbated by them in some way, but there is, for example, plenty of literature on how inhaling smoke (from tobacco, from working in a mine, from fire) can cause disease over time or even immediately (death from smoke inhalation).
I've been looking more into the 5G thing. This was rolled out in Wuhan, China (the place where the supposed virus originated). The frequency it uses (60 Ghz) causes the same symptoms that Coronavirus is supposed to cause. This is because at that frequency it (the radiation from the microwaves) absorbs oxygen. Covid-19 is primarily a respiratory illness. Go figure.
In any case, even though consumption of animal products does cause many diseases (some immediate, many over long periods of time), it is a very big stretch to make the comparison to a supposed virus that isn't eaten that one can get either through the air or limited physical contact, that is supposed to cause disease symptoms after a short incubation time.