

You need to set up your PC to be on that IP address first, TFTP doesn’t magically listen to a particular IP, you need to configure the PC with that IP.
ip link set eth0 up
ip addr add 10.10.10.3/24 dev eth0
ip addr add 10.10.10.1/24 dev eth0
Then you can start the TFTP server on the interface:
dnsmasq -d --port=0 --enable-tftp --tftp-root=/path/to/tftp/root -i eth0
Free speech includes respecting speech you disagree with and speech that makes you uncomfortable.
If the roles were reversed and you were lined up to be banned because you’re not siding with the “correct” side, you’d be crying abusive censorship.
That’s what the downvote and block buttons are for.