This looks like a Stardew Valley comic. Harvey is a doctor and I'm assuming the other character is Maru, who works at the clinic with Harvey.

My guess is the joke is something about how businesses celebrate Pride Month, but Harvey is like "what do you want to do, practice gay medicine?" Because it makes no sense for a clinic to change their business practices.

But yeah, that's just my guess. I don't really get it either.

😈😈😈