Paul Graham says you shouldn’t care and they will probably fail:

https://twitter.com/paulg/status/1697761812698034630?s=46

https://twitter.com/paulg/status/1500779743804903427?s=46

Of course he’s completely wrong, but YC won’t really do anything about it (except maybe reap the benefits)

For what it’s worth, I’m sorry this happened to you, it sucks

At the same time, seems like you might be onto something and should just keep going strong

Also, maybe you could apply to YC, they usually don’t care about funding competing companies