That's your opinion and you're entitled to it.

But I'm noticing that you are only interested in guessing the motives and actions of the US.

Does the IRGC not have motives and agency of their own? Perhaps the explosion was caused by a malfunction of their own missile? Perhaps they lied about children being present? Perhaps they intentionally placed children in a location they knew would be struck? Based on their incentives, doctrine and past behavior, you could make a reasonable case for all of those scenarios.

It's fine to speculate on who did what, and why. But that methodology can be applied in both directions, not just the one that suites your political preference.

Yes, I'm more concerned with the motives and actions of the aggressors.