Surveys in the U.K. Daily Mail show that no more than 3% of people here identify as homosexual. This might suggest that homosexual priests are likely to be few and far between. However, the vast majority of cases of 'child-abuse' were homosexual encounters (between priests and pubertal and post-pubertal teenage boys). This means that homosexually inclined priests are more likely to abuse children. This is not the same as saying that in general, homosexuals are more likely to be child abusers.
It seems to me that for homosexuals, becoming  a Catholic priest opens up opportunities to encounter teenage boys or before this scandal, did in the recent past, hardly a calling from God and thus justifying the ban.
Any priest with homosexual inclinations who has remained celibate and not communicated his sexual preferences to all and sundry need not feel insulted in the slightest. He is to be admired for carrying his cross in silence.