Ok. That was over 200 years ago, and it seems unlikely that smaller states are going to opt out of the union at this point. Why do they still deserve more voting power than populous states?

Because constitutional amendments are hard to pass, by design.

You need a supermajority in both the senate and house of reps, and then you also need effectively a majority vote in 75% of the states (so 38 states now).

There is a sufficiently large number of smaller states that it is no longer possible to change this.

There are some courses that cover the basics of US constitutional history, which might be instructive:

https://www.khanacademy.org/humanities/us-history/road-to-re...

You are conflating is/ought.

Constitutional amendments are hard to pass. That doesn't mean they ought to be.

I/the poster is claiming small states should be allowed to be "bullied" by larger states since smaller states have less people, and thus, are less important.

They aren't allowed to opt out, well except for Texas.

Texas really isn't allowed to opt out either, they just like to pretend they are.

Because Hillary Clinton lost ?