It doesn't matter, they likely want everyone to be non-compliant so that they have an excuse to arrest you if they don't like you.

This law is not made for controlling the emails and social networks of the smartasses that use anonymous emails and tor, it is made for controlling the emails and social networks of the normies (99% of the population) and to identify the 1% smartasses remaining

I came here to ask exactly the same question - i use temp addresses for lots of scammy-looking services. I don't even care to read what the email or domain is. I guess there is no way to enter the US?

you could put down the email address they end up in or you could learn to lie plausibly

And get arrested for lying to an officer and spend a long time in jail or be deported without the chance of ever coming back. Great advice this.