It's more complex than that. Russia has no credible ability to perform SEAD/DEAD. Their main anti-rad missile is the KH-31, which has 3 single frequency seekers. If a radar uses frequency hopping like any semi modern radar does, the KH-31 will lose the target completely. Worse yet, only way to swap out which frequency seeker is installed, is to send the missile to the factory for replacement.

There's a newer variant that has a multifrequency seeker, but there's not believed to be many at all, given Russia's historical disinterest in SEAD/DEAD

The west has historically had very little in terms of air defenses, because their fighter fleets serve as their air defenses. As such, Russia just never prioritized SEAD/DEAD, and it shows.