Atheism

It is true that it would be different if it were different.

I'm not following you.

Not all propaganda is bad.

This is not correct. Rights are a construct of human law that can be traced to a series of foundational legal documents and structures of government processes. It evolved out of the privileges given by royalty to variable degrees of their subjects into the ideas foundational to liberalism and other political philosophies of humanitarian ethics which established an idea of aspects of human life and choices that were sacrosanct from government interference or entitlements citizens have in their systems. You have probably heard of the phrase "God given rights" but that is more or less just a saying that came from the concept of rights becoming such a social norm that one considers them the air we breathe.

Religious individuals, from personal experience, tend to have an issue grocking the idea that ethics are not dependent on the idea of a God outright telling you what is good or bad - secular ethics isn't about what gets you punished or not by an authority. It determines what is correct based off of different rubrics based on the individual school of ethics one applies. More often ethical systems, including modern law systems, are based out of some idea of empathy towards harm and struggles in life divorced entirely from the idea of punishment by a divine being.

Rights are also place dependent because they are built into the law system of whatever country you are in. If you are in China for instance you do not have a right to free speech, the Government can censor you or exact retribution for trying to publish or communicate certain things. Like any law though just cuz it's on the books doesn't mean it's in play. Russia technically has a right to free speech but their courts basically ignore infringement on it when it suits them to do so.

There is an idea of an international code of human rights... But really it is still considered a lower priority than the idea of individual nation sovereignty so protection of those rights is toothless and it is effectively more like gold star guidelines put forward by committee than actual rules.

Rights are what we agree to as a society.

The things you're describing aren't real.

It's a type of social contract. In the traditionalist culture, being non-secular, they ascribed it to "God", but, as you know, there is no God, so it was actually up to real people belonging to religious institutions, the clergy. Since the Enlightenment, people have tried to replace God with Nature; this has often been a bad joke with terrible consequences, but eventually secular paradigms took over and tried to reason the contracts into shape, to make them more consistent. There's a lot of philosophy about this and I can't summarize it as easily. But what you're seeing today with Trump and the traditionalists, this anti-secularism, is a desire to return to the pre-Enlightenment state with its contracts and monarchy and aristocracy determined by "God":

https://en.wikipedia.org/wiki/Great_chain_of_being

unfortunately, those are dignities, not rights. rights are a legal contract between you and your governing body. rights are granted. dignities are the things that are intrinsically connected to your personhood, your humanity, or both.