I intend to vote against this bill until it is amended to do something that could not be achieved by a citizen asking their senator to sponsor a bill
But what if neither of their Senators agree with the bill? Say, for example, a left-winger in the Southeast wants to propose a bill. Obviously, neither their District nor Regional Senator is going to sponsor it because the Southeast is dominated by rightists, but, if this bill or something similar were passed, that person and others who disagree with their Senators on issues would still be able to propose legislation.
(I suppose using a leftist as an example is probably not going to convince you, but what about a social conservative in the Pacific?)
Even in that case, aniother Senator is likely to pick it up. I mean, Ebowed introduced Ernest's bill, despite the fact that the two are on complete opposite sides of the country.