I think that's because XRP had a great/big community, same with Dogecoin and Dogecoin was also being bullied for being a meme coin, yet it was still standing strong. Only those who think or talk negatively about XRP are maybe just a hater of it and they are only spreading a FUD. XRP isn't the same as the 2017 mania coins but again like Dogecoin, XRP is much older than them.
The difference is that dogecoin was made as meme but appeared to be something bigger while XRP was made to be something big but it looks like it will end up as a meme. XRP has no advantage over competitors. XRP did not achive anything in last 3 years.