Brian, by that same logic, you should be voting Republicans based on your disdain of sales tax.
FYI, Vietnamese-Americans don’t start migrating here until late 70s. So those who are over 65 in 1990 wouldn’t have been here long enough to save for their own retirement. They also don’t usually vote. Those who do vote are in their 40s in 1990 and the majority of them are either engineers or small biz owners.