It's important to consider context when talking about people's moral positions over time.

We don't judge the founding fathers' morals by the same metrics we judge our contemporaries. That much should be obvious.

The founding fathers, the framers (a different and later group, though the two overlap and are often conflated) and original states had a variety of (and evolving in some cases between the Founding and the Constitution) opinions on the issue; some (Thomas Paine and Ben Franklin, notably, the latter also the primary author of PA’s 1776 Constitution which also adopted this position at the state level) were in favor of universal male suffrage.

They also didn't forbid slavery. It doesn't mean they were right.

Franklin also practiced air bathing instead of hygiene.

Let's make everyone a property owner by default at birth

Not the most important(IMO) of our founding fathers, Thomas Paine.