37y/o here. Fuck Squirrels, grey and red, as well as chipmunks. They're all just different textured rats. Destroy shit to make nests, destroy shit to get at food or store food, disease spreading, fuckem all.
Anyone needs advice for bird feeders: 4x4 post in ground, thin walled metal rust resistant metal tubing covered in environment friendly lube. I've gone extreme with lard - looked like shit after a week, now I just buy vegetable oil spray and coat it. As long as there are no trees close enough for Squirrels to jump to the feeder you shouldn't have an issue. Every post I put in gets a 4 way cross on top to hang 4 individual feeders from. I do this for any feeder that isn't humming bird/oriole cuz they don't seem to get fucked with.