I feel like if you’re subbed to a meme community you ought to know what you’re in for. Memes are typically low effort both to make and to consume, which means there will be more of them created and upvoted in the same period of time as other posts. They will ALWAYS overwhelm other content. This is why many sufficiently large communities either split and create meme-only spaces contain them or limit them to specific days of the week.

On reddit I had a separate account for meme subs, because otherwise it was all I saw in my feed.