Actually... It does serve a purpose. Same kind that a mammal's sheath does: Protect the most sensitive portion of the penis (the glans for us) from abrasion and such. Circumsized, or more properly, mutilated males have lower sensitivity in the glans for this reason.
Secondly, those who get ill, do so from not washing... Which isn't any more tedious than washing one's pits (which I would hope nobody finds tedious). So long as one washes, which literally just takes some clean water, infection rate is near zero.
It being "ugly" is purely your opinion. I find them quite fetching, myself.
The ideas behind circumcision are primarily tradition, a disgusting one started by an equally vile man by the name of Kelogg. Learn your history and actually check/investigate studies rather than allow them to confirm your bias.
Also, if this was "just an observation" you'd have stopped after the first rejection.