Firstly, the Coinbase exchange is registered and located in the United States, and therefore this exchange cannot ignore the requirements of US regulators and authorities to block the accounts of Russian users, otherwise it itself will be subject to prohibition.
Secondly, after registering on this exchange, in order to be eligible to trade on it, you must go through full verification, including sending a copy of your passport or driver's license. You must also indicate your phone number and confirm its ownership. Therefore, Russian users are very easy to identify.
I am from Ukraine and I see the destruction and genocide of the Ukrainian people caused by Russian soldiers. To date, they have destroyed 202 schools, 34 hospitals, more than 1,500 residential buildings. 38 children were killed, 74 were injured. Therefore, in Russia there are no innocents in this war. They are to blame for allowing such aggression against the Ukrainian people. Therefore, I applaud the actions of Coinbase.