I'm a Silicon Valley engineer and former Republican and I support a wealth tax. I voted for this one and would likely vote for similar measures in the future. Why? The r>g dynamics [1] of current economic inequality are not stable. Absent things like a wealth tax economic inequality will continue to grow, inducing political instability.

BTW, a wealth tax can be implemented alongside credits for low-income people in such a way as to not generate any new revenue. I'm in favor of such mechanisms as a way to move more people into the middle class

[1] https://en.wikipedia.org/wiki/Capital_in_the_Twenty-First_Ce...