What are the responsibilities of the Federal Government per the Constitution.?

What are the ONLY responsibilities of the Federal Government? The 10th Amendment says the Federal Gov’t can only do things expressly listed in the Constitution. Every other FEDERAL activity is illegal. So, here you go.. Second hand information but I have no reason to think there’d be lying goin’ on’

So, #1. Mint gold & silver coins ( Not paper money)

#2. Establish Citizenship rules

#3. Post offices and Post Roads

#4. Bankrupcy, counterfeiting and piracy laws

#5. Patent and Copyrights

#6. Regulate commerce with foreign nations between States and with Native Tribes.

#7. Declare war. Maintain Army, Navy and militia.

#8. Establish lower Federal Courts.

#9. Exercise authority over Washington DC..

So, all those government Agencies and everything related is illegal Do we really own all that debt?