You're damn straight I'll oppose any selective tax break, if it's based on a bigotry-basis.
Want to offer a selective tax break based on skin color, sexual practices, gender, or national origin?
Then count me in as being OPPOSED to it.
But back to the point, you're saying that you're opposed to the tax break because it is on a bigotry basis. This is precisely the sort of mentality the Democrats tap into with their class-warfare themes: "Stop the Bush tax cuts, they're just a billion dollar giveaway to the RICH!"
My belief as a conservative is that we should promote any kind of tax cut, even if they awarded on an "unfair" basis. Why? Because, like life itself, the entire tax code is "unfair." And because the more we can drag Democrats, liberals, and their constituencies into our swamp (i.e., our pool of issues, among which is tax relief), the better off we'll be electorally.