There are people who eat both. I’m not a big meat eater and prefer the veggie versions of things, but will eat the occasional meat (mainly chicken and sausage).

I don’t think a lot of meat alternatives are trying to perfectly replicate their meat counterpart but rather work as an alternative in dishes. Tempeh bacon for instance will never match the taste or texture of real bacon, but tempeh is delicious on its own so I will never complain about smoked tempeh. It’s easier to imitate processed meat like sausage or nuggets.

Though I will say I used to get a lemongrass seitan “chicken” from a pho place that was better than any real chicken I’ve ever had