Let's see what prog fans tolerate the least.
My top 5:
1_Raggaeton
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For listening and dancing (that man on behind thing makes it look like a stand-up sex act), the most horrible type of music there is. The same rhythm, mostly talks about inappropiate things, and objectifies women as sex objects and crap.
2_Cumbia: Another dance music I can't stand. While more tolerable lyrically and musically, and not requiring doggie sex dances, it is still terrible and "cumbia villera" is a form of extremely silly "bad boy" lyrics. Popular in my country, this is terrible. However, dancing with tango in a party is a bit unusual.
3_Rap/Hip Hop: While there are rare artists, I really really don't like the unmusical rapping and repetitiveness of the music and many of the lyrics.
4_Death MEtal: Ok, Opeth is a very rare gem, but this genre mostly has unmusical screaming and pathetic songwriting.
5_Punk: Yes, The Who are great, but is there something more than that? Extremely loud and simplistic music that just turns me off. The vocals are usually bad and the musicians subpar.