Since Hamas has been designated as a terrorist organization by the federal government, As a terrorist organization, Americans are not allowed to provide material support to the group.

The federal government would have good reasons to protect national security to question people that threaten our national security.

It might be weird or not depending on how you frame it. Asking “what do you think about the current president of the country you’re entering” might be a pretty benign question for a border officer to ask. Or it might not, depending on the exact wording and context. Hard to judge without seeing the actual thing.