Is it hard?
The answer is: No. Why not? In the 1980s 1/3 of the world population were using English. In the 2050s 1/2 would be. If it is hard, not many would use it.
Who made it hard?
The learners and teachers made it hard. Why? They turn English into their mother tongue. They should learn English as English, not as their mother tongue, which made learning English hard.
How to make it easy?
Only translate English into English, and never into a mother tongue. Why? No one as a photographic memory to remember all the matches. They will forget, based on statistical calculations. If we pursue it further using probability, we will see for sure.
Conclusion
English is not hard and learning English is not hard either. Some people purposively made it hard, and hard to learn for others.
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