What is the message of this political cartoon

I believe the cartoon is trying to say is that the government was using communism as an excuse to get away with things

Hope this helps

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.