My native language is Armenian which also has cases, no definite word order, and word endings, but no genders. I think cases are great. Latin sucks cause it has 3 genders and neuter has like 3 different forms, each changing the word endings. The system overall is great, its the inconsistency that makes it difficult. In english, you still have to denote the intent behind the decelerations somehow.

https://latindiscussion.org/attachments/declensions-1-jpg.24...

To everything else you said: I think language develops more naturally without such intent.