It could just as easily be inter dimensional visitors, time travelers, natural phenomena , or prank-playing teenagers. Any competent lawyer (IF the evidence ever made it into court) could plant reasonable doubt in several seconds.
Only your imagination makes the assumption that they were caused by beings from some other planet.
They may well be inter-dimensional spiritual beings—primarily, more or less or some such.
Their own assertions about being from other planets around other specific star systems is . . . at best suspect.
There are reports of various teams of humans traveling for extended stays on such distant planets. It remains to be seen how factual such reports are. There are more than a few such reports from a diversity of sources but not sufficiently diverse or convincingly solidly authoritative for me to do more than put it on a shelf and wait and see what God confirms about that.
Your imagination about my imagination is exceedingly laughable.
No, the rest of your noise is essentially uninformed nonsense.