GOP to gay voters: cast your sinful, litigious ballots for someone else, we don't need ya

Last week Waldo posted a "Reality Check" on the state of employment discrimination in America. Here's the graphic:

Today the US Senate broke the threat of a filibuster against the Employment Non-Discrimination Act of 2013, some seventeen years after it failed in the same body by one vote.

This time it passed, 61-30.

South Carolina's two senators voted against it. North Carolina senator Richard Burr was somewhere else for the day. Senator Kay Hagan voted aye.

House Speaker John Boehner then announced he was killing the bill:

House Speaker John Boehner (R-Ohio) affirmed on Monday morning that he would oppose a law that would prohibit discrimination against gay and lesbian employees in the workplace, citing the possibility that it would put a financial burden on businesses. 

"The Speaker believes this legislation will increase frivolous litigation and cost American jobs, especially small business jobs," Boehner spokesman Michael Steel said in a statement... 

But even if the bill were to make it through [the Senate], it would require passage in the House. And with Boehner coming out in opposition, it seems unlikely that it would even get a vote.

Every time a bill like this comes along, the  tired wheeze of the GOP is that it will increase frivolous litigation.

Can anyone cite an instance of that actually happening? Can anyone explain why gay Americans are harboring a pent-up rage to sue other people over claims that have no merit?