There are a ton of black Pentecostals, SDAs, and other conservative Christian groups out there.
There are, but many of them vote Democratic.
Black voters are turned off by the GOP because of their embrace of measures designed to depress black voter turnout. Blacks view this as a "survival issue", and rightly so. If the GOP stopped its Voter ID initiatives and such, it would likely attract a certain percentage of black voters who are religious and/or entrepreneurial.
No, it wouldn't.
Black people in general are overwhelmingly religious, and the (racist) idea that black people only vote for Democrats because they want handouts is simply not true. if this was the case, Richard Nixon would not have won 32% of the black vote in 1960. It's clear that Goldwater, the Southern Strategy, Reagnism, and now Trumpism, have turned off almost all black voters because they have no reason to vote for a party that relies on pandering to poorly educated whites and no one else.