That beans cause gas is generalyl known though
It’s also known that after a while people adapt. The intestinal microbiome grows more methane-metabolising bacteria, thus decreasing the severity of any gaseous issue.
But it’s true that some digestive deseases may limit people’s ability to consume large amounts of legume.
Not every country is the same as the US. Other countries’ conservatives aren’t necessarily the same as yours. Sometimes conservatives and left-wing parties even work together to solve issues.