Which war over the last 50 years that the US has been involved in have been started by a Democrat? (Hint: zero)
I think you should engage in better political analysis than saying that Republicans start more wars because Democrats are the ones who started WW2 and The Mexican-American war. I just don’t really see the value in that. You should instead argue that modern wars, while usually started by Republicans, tended to have large political consensus on both the Democratic and Republican sides.