dada isn’t a catch all term for modern art. refers to a place and time.
it does but you could compare it to the works that came from that place and time. to me it has lots of similarities.
to me you can recreate any form or era of art right now and call it that way. its not modern art only because you drew it yesterday
this board graphic was made by random coincidently placed collages and lines. it doesn't make sense at all yet the artist decided to call it art.
for me and my eye its art and it looks great even though it has no meaning or cause whatsoever. you could say that about lots of modern art but this is made out of collages which reminded me of the dada movement. modern forms of art came out of that movement so why not call it dada?