Do you really think matches, protests do yield results? How many of them have you witnessed in the last 10 years and what are the results? Have you seen any real impact of societies as a product as protests/matches?
Protest and marches as such may not yield results immediately. But society changes in time. Think if there were no protests or marches by the blacks what would be their situation today. Same in case of feminism. These protest and marches work as the catalyst of change. Think of Labour movements which brought about changes in labour laws. And if any American says its of no use, I will urge them to read their history. Something called - Boston Tea Party. In India there was a huge protest for right to information which helped in bringing the RTI act that has to do with transperancy of government. If you want to know about anything related to government or its activities, you have the right to the information on the same. Similarly, a large protest that happened after what is infamously known as Delhi gang rape in 2012, made the Indian government amend the law to give severe punishments for sexual offences. The victims name was not released officially during that time, so the protestors named Nirbhaya which means courageous woman. The woman died due to injuries. But she was brave enough give her statements even in death bed. So the act is now called Nirbhaya Act informally.
Long things short, if any of the neutrals believe sitting in their couch bringing the arm chair revolution will bring change, you are in fools paradise. You need to fight to gain freedom. Freedom from tyranny, oppression. Freedom from inequity and inequality. Freedom from regressiveness. Freedom from superstition. Freedom from religion. Freedom!!!
March this Saturday for Impeachment is going to piss off trump-YAY
As TheMiddleWay stated above, that will be the only outcome and nothing will change.