Sincere question

I honestly don't understand this and so I'm asking a sincere question that I've not seen a real logical answer to. My own children are half Mexican. I'm Puerto Rican and Black. So what I want to know, what is it about Mexico that makes Mexicans so proud almost to a point of arrogance when you'd sacrifice life and limb to not have to be there? Also why do you fly a Mexican flag to show you want to stay in the US? The answers given were that people can be proud of where they are from without actually wanting to be there but there's 0 logic in that. That's akin to saying you are proud of your abuser and wearing a tee shirt with a heart around your abusers face and getting upset when people ask you why you're defending your abuser that you fled from. I also feel like Mexicans are putting the spotlight on them unnecessarily when this involves other ethnicities. We know those European immigrants are overlooked but the rest are targeted the same as you. They're simply not drawing attention. All of that aside, to the question, what is it that you love so much about a country you fear or don't want to live in and why is your flag the focal point in another country?