The evidence that aliens have been visiting earth for hundreds of thousands of years is extensive. If you want to pretend that none of that evidence exists and that ALL UFOs are man-made, that is dumb unless you can answer the following question:

The advanced technology to make man-made UFOs came from where?

Yes, some UFOs that are spotted by the normal military are probably made by the secret UFO military industrial complex. But they either got their technology from crashed UFOs or from exchanges with aliens.

The evidence that aliens have been visiting her for hundreds of thousands of years is extensive. If you want to pretend that none of that evidence exists and that ALL UFOs are man-made, that is dumb unless you can answer the following question:

The advanced technology to make man-made UFOs came from where?

Yes, some UFOs that are spotted by the normal military are probably made by the secret UFO military industrial complex. But they either got their technology from crashed UFOs or from exchanges with aliens.