Ovsyannikova and Kara-Murza are not jailed, they are detained and their fate is going to be determined in court. And they are not detained for being anti-war as you said -- they are detained for spreading misinformation --
repeatedly. Yep, just like they would be in the glorious free USA.
As for the thousands of protesters being jailed -- you make the same (deliberate?) mistake again -- they are detained, not jailed. And then released with a fine. And again -- they are detained not because they are anti-war but because their protests are illegitimate -- they are not properly registered with the authorities. And guess what? It works the same way in the USA!
Makes your comment look in a totally different light now, doesn't it?
Oh, and if you didn't know, RFERL is directly sponsored by the US government while WaPo and NYT are covert fronts for the Democratic Party so anything you post from them should be taken with a truckload of salt.
The situation in Russia right now in regards of Ukraine war is very simple -- everybody has rallied around Putin and against the West, everybody knows that this war is a proxy war against USA ands Ukraine is just an unlucky puppet. If you see some media telling you otherwise, you should know outright that it lies.