I play in three Bands with two different guitarists, both are appreciative of the bass and what the instrument and musician brings to the band. They both encourage me to experiment when playing and even more so to solo. I think guitarists who slag off bass players are in a minority and would presume there are also other musicians, bass players included, who are of the opinion that the world revolves around them. Being in a band is to be part of a team and I think the most simple supporting bass line offers so much to the song, and echo the comment above that you really notice the bass player when he's gone.
So lets not slag off guitarist `per se' as it's such a generalisation, just as, not all bass players are kind, understanding, obliging, etc etc. Although as is my experience of this forum I think most are!!!!!!!!!!!!!
Anyway, drumming is easy ...................... not!
Cheers
Charla