You certainly should...for at least a couple of reasons.
Your question appears to lay bare your lack of knowledge of the Second World War and you wouldn't be worse off for brushing up on the details and the significance of the Battle of Stalingrad specifically, and the history of what the Russian people have endured through wars, generally. No other country on the planet even comes close.
More immediately, as we speak, and for several months now, the reckless criminal sociopaths that pass for leaders in your country, basing their operations out of their compound in DC, are and have been, on your behalf, constantly and openly provoking Russia (another nuclear power, by the way) and has actually committed an act of war against Russia with their monumentally stupid financial sanctions in an attempt to get their way. Russia is not Grenada.
So, you should be concerned what Russians think...extremely concerned.
Fortunately for you, Putin is the only adult in the room (but at least there's one)...his is the only cool head that is prevailing while Obama & Kerry continue to attempt to demonize him and his country with nothing but lies that only the gullible or willfully blind or woefully uninformed can't see through. If the vodka swilling Yeltsin still had his hand on the button during the last six months you and I might not be having this conversation. Russia could literally crush the USA financially in a few days at most if it wanted to and your life would be upside down for a very long and indefinite period of time but it, thanks to Putin, keeps choosing the high road which is a concept that is foreign to your dangerous, irresponsible, childish, criminally insane leaders.
So, again,
you should be concerned what the Russians think...
extremely concerned.
Here's another fact and one that you should be offended about. It details exactly what your government thinks of you, how they are constantly manipulating your perceptions and how you are nothing but cannon fodder to them, being used and abused and lied to constantly. You want to discover the truth about how that shiny badge of honour that you seem to so proudly wear on your chest with respect to you and the Japanese and WW2 came to be pinned on your chest?
Then top up your hot chocolate and as long as your IQ is greater than your inseam, get prepared to get ******ed off, very ******ed off.
You won't finish this in one sitting and I strongly recommend that you open every link in the article and watch every video since doing so is critical to getting a full understanding of the scope of the crime. You mean absolutely nothing to your government other than your being an object to be milked.
http://jamesperloff.com/2014/11/06/pearl-harbor-roosevelts-911/