I agree that some marchers were well-behaved and some were not. The problem is, the bad ones get all of the attention.
My philosophy is that I believe in the constitutional right to gather and protest (peacefully). I also have the right to criticize how the protest is performed. The protest march in DC had way too much unnecessary vulgarity. Why couldn't they make their points without being gross? MLK certainly never did that. He and his followers always marched with class and dignity, even when they were treated badly.
Yes, media get more money if they focus on bad situation or shocking news, so I don't read major media websites like CNN, NBC and FOX often, so I'm just majority reader on Huff Post, ABC News, small news and blogs, even some of them gave a link to major media for sad news like I posted one from CNN and ABC. ABC is one of my most favorite due to hardcore Disney fan and have a huge support with Disney.
That's ok, you can criticize whichever you like, but I just puzzled and realized that you have different philosophy about parent's handle with children. I didn't realize about how is nasty with DC women march and Shel said it was great. I guess - it is modern day that many people cussed anywhere, especially in DC metro. Back in early 1990s, my father used to cover my eyes when he saw vulgarity when we visited DC from NoVA.
In bold, I can answer your question, some activists believe that vulgarity has huge impact and force our representatives to realize about how important is women's rights. That's not mine but activists made decision with messages.
For me, I personally prefer to let my child know about bad languages and tell them to never use in home, school and anywhere until they are late teen to adult to make a judgement if their behaviors are acceptable, but I don't welcome anyone with bad attitudes and being moody. I do definitely believe that old children can watch or play violent games, movies and TV shows, but they must know that all aren't real and I just want them to be brave instead of too sensitive. I'm no authoritative, but I just want my child to have responsibility, not treat like spoiled.