These "marriage licenses" do not violate the law, since the "marriage" of the individuals named on the "license" is void, both in the natural law and by the state law which gives it voice.
It will violate the law to treat two men or two women who have gone through a sham ceremony as if they were married, which is of course impossible.
The licenses, per se, are meaningless.
Don't know why anyone can claim discrimination. Anyone -- heterosexual, homosexual, or bisexual -- has the exact same rights to marry a person of the opposite sex.
There is no discrimination. Period.
I wish someone would point out to the ignorant talking heads that Utah was not allowed to join the Union until it renounced and prohibited bigamy. Perhaps some Mormons would now like to re-apply for multiple wives.