The US may have no use for Venezuelan oil, but Venezuela nationalized US investments in 1976, stealing Exxon and Gulf Oil's assets then paying them back a pittance.
Venezuela owes those companies several billion in 1976 dollars, money they have not repaid. The US will now likely use their oil as collateral to force them to pay. No I am not dumb enough to think they will stop only there or do this in a justifiable way, but I would assert, when someone steals something from you, you have the right to use force to get it back, even if the method just used is not the right one.
Where do you draw the line in the list of "not the right [method]"? I would assert that this is not justified, (in addition to not being the right method).
Can we send troops down there and just starting kill people until they pay us? Torture them maybe? Start spraying agent orange?
If someone steals something from me, I'm justified in beating them up, threatening their family, maybe even burning their house down until I get what I want, 50 years later?
Where do you draw the line between justified and unjustified when it comes to "not the right [method]"?
Conveniently leaving out over 100 years of US involvement in Venezuela and stealing of natural resources huh.
Then let Exxon and Gulf Oil try to use force to get it back. Why should I be forced to help them?
I'm fairly certain that there's a large segment of the population who would deeply dislike that rationale, especially if it's applied consistently to all past actions (cough slavery)