First, that is not what Godwin said.
“Texan” is not an ethnicity at all, but many Texans are ethnic minorities. And many of them did not vote Republican. Also, many of them are children. Some of whom died. What did they do to deserve that?
You want to rant about Cruz, Abbot, Perry, and the rest of the assholes who helped cause this mess I support that. You want to express some schadenfreude towards the people who supported these policies, or at least fell for them, I won’t join, but I understand. Especially the specific ones that mocked other states during their disasters. But the suffering from this fell disproportionately on those who did not have any say in the matter.