And all of this is a moot point.
Women currently serve in combat roles, the same way men currently serve in support roles. Thus far there has been no lowering of the standards required to be able to serve on the front lines in either infantry or armor in the US Army, meaning women who want to serve in those branches must meet the same physical requirements as the men, nor has there been any major change in overall physical requirements. We've allowed women in all parts of the military for a few years now and have yet to see any real drop in combat effectiveness, plus we have the evidence of multiple other countries which allow women in all branches of their military and have suffered no real issues, so clearly the evidence allows that women who are capable of meeting the same standards as men are capable of participating in combat. That's settled; shall we move on?
The issue at hand is regarding transgender soldiers, not women. Transgender soldiers are required to meet the same physical standards to serve no matter which gender they're transitioning to, and while there may be a brief period of limbo for the soldier in question while undergoing the therapy and possible gender reassignment surgery, upon completion there is absolutely nothing to prevent that soldier from serving their country honorably and with a sense of pride. It's not as expensive to handle these soldiers as Trump is trying to make out, given that we spend more than 8.4 million dollars annually on virtually everything else in the military, including Viagra, so the expense is clearly not the issue. So if the soldier, once they complete gender reassignment, is capable of meeting all the required standards to serve, then there should be no objection to their presence. The fact that some people, including our toddler-in-chief, ARE objecting says to me that it is a simple case of bias. And bias is no reason to prevent perfectly capable soldiers who happen to have changed their gender from serving. It's literally that simple. If someone can come up with a logical argument as to why someone changing their gender means they should not be able to serve their country, I'm all ears, but thus far all I have seen in this thread is variations on, "well I don't like the idea, so it should be stopped", and quite frankly that is the absolute STUPIDEST reason to prevent something in existence.
ETA: Incidentally, I served in what is traditionally considered a combat arms branch in the Army, albeit distant combat; I served in Air Defense Artillery on a PATRIOT unit, and let me tell you, I had to meet physical fitness requirements for that role the same as my soldiers. I had multiple women in my platoon while I was a platoon leader, and they all had to be able to get the launchers set up the same as the men did, and they all did perfectly fine; in some cases they even performed better than the men did. Now granted, Air Defense Artillery is not the same thing as Infantry or Armor, or even Field Artillery (which is the fourth combat arms branch in the Army), but it is still considered combat arms, and women proved that they were capable in that branch as well as Field Artillery well before the decision came down to allow women in Infantry and Armor. So I hope that puts the "women in combat" argument to bed so we can focus on the real issue at hand.