The LCWR group does not speak out against abortion. They speak out in favor of abortion. Their average age is 75 or so. I know because I work with members of an order that has members of LCWR. They were possibly good nuns when they were consecrated 50-plus years ago, but then the 1960s happened to their brains.
Over the past several years, the Vatican has begun the long process of squeezing them out. It's barely necessary, since the members of this faction are dying off, and there have been no vocations to the orders they represent in nearly half a century. By the way, these nuns don't wear habits—they wear polyester pants-suits instead.
The orders of nuns that actually wear habits are mostly new orders. They tend to be young, pro-life, pro-military, and pro-gun. I know a great many of them. Over the past two decades, their orders have been growing like wildfire.
And then there is Mother Angelica.......... ;^)