Does this look like a rotten wisdom tooth?

They all look like they need some desperate attention. But I’m no dentist either. I’d get in as soon as possible💛

Yes, and your gums look quite red and irritated, which means it's time for a good cleaning! Not trying to be rude, just noting that if your gums are quite red like that it is likely some gingivitis (gum disease) and is important to take care of for your overall health. If you don't have dental insurance, look online in your area for some dentists that may do some pro-bono or low cost dental work if $$ is a concern. If not, most dentists can do a cleaning for $150 or so and they could check out the back tooth while they are at it! Good luck!!

Yes