Not all community colleges are the same. There are over 1,000 community colleges in the USA. In California alone, there are 115 Community colleges, and these enroll almost as many students as are enrolled in universities across the UK.
So there is no such thing a “community college” about which you can say that it’s easier or more difficult than high school. Of course, high schools are also very different in regards to how difficult they are.
So, if I were you, I wouldn’t assume that community college would be, as you put it, “piss easy”, because you will likely be in for a rude awakening.
Moreover, you will likely find it difficult to transfer to a decently competitive four year college if you only took easy classes. When you want to transfer, they look at your transcript the same way that they look at the transcript of high school graduates. If you have only taken easy classes, you will not be a competitive applicant.
So, if I were you, I would scrap your plan of “attend an easy CC, take easy classes, and then transfer to a four year college with a high GPA”. It is very unlikely to work.
The reason that many USA students go through the two years at CC route are A, it’s cost effective, since they can take general education courses for less at a community college, and because many did not do well in high school, but have turned a corner, and are planning to work very hard at challenging courses, and hope to do better than the did in high school.
Why are you looking to attend college in the USA, and can you even afford to attend college here? While international tuition isn’t all that high (about $12,000 a year), you still have to pay rent and other living expenses, and most CCs do not have dorms, so you would be paying rent as well, and rent can be pretty expensive in California.