trailer being pushed around by wind

Thank you for all the thoughts/info I think I discovered another issue I need to solve first before doing more with the hitch setup. since I got the trailer 1 year ago I have noticed that one tire was almost shot after approx 1500 miles last year so this spring I swaped it for the new spare and I have only taken 2 trips this year for a total of 450 miles and can see the new tire is already starting to get chopped!! with the trailer sitting level and no side pressure from turning on either axle I put a straight edge across both tires from front to back on both sides and one side is right on and the other side with bad tire I hit 3 of the tire walls but the one that is wearing funny seems to be toed in 1/4 to 3/8 of a inch! I know people are going to say this is the wrong way to do it but it gives me a pretty good idea that I have a axel issue, which leads to the next questions.

could a axel alignment problem cause the trailer to slightly dart back and forth causing the condition I explained in my original post?

also has anyone tried to warranty anything like this through lippert? my dealer a couple months ago when I brought up my tire issue said they don't warranty axles because they don't know if you hit anything....any thoughts?

thank you