Yes there ARE people that believe the virus isn't real, the same way there's people that believe the world is flat, but ironically I find your viewpoint about all the "stupid" virus doubters to be what's actually the real problem.
You'll say that Trump called the virus a hoax, or push narratives that imply there's actually any significant percentage of people that think the virus doesn't actually exist. You treat it in black and white, and ignore all the shades of gray and all of the extra dimensions to the issue. It's either "you're with me and everything I believe about every aspect of the issue" or "you're an evil stupid virus denier".
There's so much more to the issue than that, and 99% of the people you think believe the virus isn't real DO believe it's real, they just don't agree with you on how severe it is and how it should be responded to.