As of September 2018, the active duty component of United States Army consists of 31 brigade combat teams:
14 infantry brigade combat teams (including airborne brigades)
10 armored brigade combat teams
7 Stryker brigade combat teams
Army National Guard brigade combat teams have the same
TOE as active duty component BCTs. As of September 2018, the Army National Guard consists of 27 BCTs:
20 infantry brigade combat teams
5 armored brigade combat teams
2 Stryker brigade combat teams
How many Abrams are in a ABCT?
90 right?
So ...
900 in Army
450 in ARNG
= 1350
Let's give some of the first from my post be taking the roles you mentioned.
US still has WAY MORE Abrams.