Yeah, the concept of the news article headlines and the post headline itself is twisted in itself. The groups have an issue with the federal government passing legislation that uses language to indirectly legitimize gender identity politics, which can be abused in the future and wouldn't likely pass at all on its own (think of it like a passive earmark of language). The evangelical have zero issue with lynchings being against the law. This is unfortunately very typical of mainstream media today, as they twist words to make things appear to appear as they are not in reality to push a narrative.
However, this group may have a point as others have noticed: lynching would still get you criminal charges just like any other violent act, so why was the bill necessary to begin with? The purpose could've been to push in gender politics or special treatment based upon identity politics in the bill amongst other political agendas other than saying lynching is a crime.