Unless we are going to rely on the common cold to save us from them "Serving Man."
Guy Malone has 400 cases where he has documented that:
1. Declaring that an abduction must stop immediately on the authority of Christ's Blood and Name resulted in an immediate stop. One such case--the husband suddenly woke up realizing he was about 2 feet above his bed with a pole up his butt and an ET looking on from the food of the bed.
Quickly recalling some vague memory from childhood Sonday school class, he loudly declared: "STOP, IN THE NAME OF JESUS--AWAY FROM ME." Whereupon the pole was so quickly withdrawn that he fell to the bed with a crash finally waking his wife who had seemed zoned out.
Guy Malone has many similar cases.
Guy has also NEVER found a single case of an abduction where the abductees had an active, authentic, genuine, alive, intimate relationship with Jesus Christ and earnestly endeavoring to walk with Christ. Not one case.
Guy has also NEVER found a single case of abductees who had NOT dabbled in the forbidden occult in some way or another--at least with horoscopes.
You might want to rethink your assumptions.
Particularly when the critters show up on your doorstep having selected you for lunch.
There have been VERY few cases where hand to hand combat stuff has been helpful. The grey type critters are fairly weak. However, their tech and mind control stuff typically renders the humans very frozen, immobilized--unable to move more than their eyes.
And the reptoids are not weak at all. Some of the insectoids are perceived to be very strong but the data is spotty.
Guns have been helpful in some cases but not in others. Where the critters were not aware the bullets were heading their way--guns were quite effective. Otherwise, a kind of force field or body armor/field caused the bullets to fall harmlessly to the ground a foot or so from the critter.