If you allow the mangs to be converted, suits u right to lose.
Most people who will go monk rush will do so with civ that has redemption, and I think mangonel will only kill a monk with 45hp with a direct hit and even then I have my doubts about that. It is generally a bad choice, maybe you will bring it into fight after monks have converted other units though.I'm sorry man, but I disagree.
I don't find range a problem, it's a ''1 shot 1 kill'' vs a monk, redemption is a luxury-choice for a monkrusher's already weak eco, and as you said, IF it's available.
Using a scout/TC fire/Tower/something, and a couple of mangonels, has always worked for me vs monk rushes.
The mangonels need micro, I'll give you that.
god, you don't know anything 11, hope new players dont read the **** you wrote.for arena map just do a defensive castle or boom with a fc+stable and do scouts for keeping reliqs and in case of being pushed by monks upgrade LC and rape him, cheers!!!
Monk rush only is worht if you have aztks or another strong monk civ and if the enemy is surprised by it or he takes a bad choice.