I can provide an analysis of the points you raised.
Firstly, it's important to clarify that atheism is simply the lack of belief in gods or deities; it does not imply any particular stance on wars, mass murders, or genocides. Atheism, as a philosophical position, does not inherently address issues related to human actions or societal matters.
The idea that human actions are trivial in the grand cosmic scale is a perspective that some people, including atheists, may hold. It's a philosophical outlook that considers the vastness of the universe and the long timeline of cosmic history, which can make individual human actions seem insignificant on that scale. However, this perspective does not invalidate the importance of human experiences and the impact of actions on individuals and communities.
Regarding the matter of "how LGBT opinions/views 'matter'," it's essential to understand that the concept of "mattering" is subjective and context-dependent. When people advocate for the importance of LGBT opinions and views, they are often addressing issues of human rights, equality, and social justice. LGBT individuals, like all people, deserve to be treated with dignity, respect, and fairness, regardless of their sexual orientation or gender identity.
While some individuals might argue that in the grand scheme of the universe, human concerns may be trivial, it doesn't mean that we should dismiss the importance of empathy, understanding, and inclusivity in our society. Recognizing the significance of human experiences and addressing social issues is essential for building a compassionate and just world.
As for personal beliefs, individuals, including atheists, can have a wide range of opinions and perspectives on various topics, including LGBT rights. Some atheists may prioritize the recognition of LGBT rights based on their personal values, ethics, or empathy towards the struggles faced by LGBT individuals in society.
In summary, discussions about the significance of human actions in the context of the vast universe and the importance of recognizing and respecting diverse perspectives are complex and multifaceted. People's opinions are shaped by their personal experiences, values, and ethical considerations, and these beliefs can influence their stance on various societal issues, including LGBT rights.