> Are you asserting that the FBI is keeping muggers and highwaymen away from Elon Musk's money?

Assuming some keeps some share of his money in US banks, or invested in firms which keep their money in US banks, absolutely. Well, "bank robbers" instead of "muggers and highwaymen", but I'm assuming that Musk doesn't carry enough cash on him that the latter are nearly as important as the former in terms of risk to his money, though they might be a bigger threat to his personal safety.

https://www.fbi.gov/investigate/violent-crime/bank-robbery

It's funny that you mention highways since they wouldn't exist w/o tax revenue.

You clearly aren't aware of the many and myriad forms of highways we've had in America, including private toll highways, and the National Road, which was funded by the federal government, but predates the federal income tax by more than 100 years.

Again, I never mentioned income tax. Secondly Merriam-Webster defines a highway as "a public way" (e.g. not private).

By that definition, there are many government-run highways that must be excluded from the definition. Further, privately owned does not mean publicly inaccessible.

If your assertion is that you're referring to all forms of tax revenue, then your original post should probably not refer to tax rates. Otherwise, if you're just arguing in favor of all taxes, then it seems overly broad for a discussion on income tax revenue.

Either way, we've had public ways that existed without having been funded by any forms of taxation. Unless you're specifically attempting to pick the only definition of the word that bolsters your argument, while ignoring all other definitions, then it remains a truism that highways themselves do not exclusively originate from tax revenues, and are in fact capable of existing without taxes altogether... and it remains true whether or not one considers taxes to be universally good, bad, or anywhere in between.