As I've said before, I have 100% certainty they existed on Oct 6, 2013. I also have high confidence they existed Oct 18th or so, 2015. I have a pretty good notion they existed as late as Summer 2016.
I have no reason at all to believe they don't still exist today. To think otherwise, at least for me, would be baseless. I see no reason to think there are any fewer today than there were 20 or 50 or 250 years ago .. at least equal chances there are actually more.
I don't understand the weirdly contorted rabbit holes some people insist on exploring. I really don't.
MIB