Why should the favorability of foreign countries factor into it? If someone were to suggest that America or China should decide on how British laws are made or how British public monies are spent they would be called a dunce.
One World, to borrow a song title.
America should work with the rest of the world, not against it. Yes, it's difficult to apply this to Russia, China, et al, but America is an ally to the UK, Europe, Canada, etc, and should not be removing itself from climate accords, and other international agreements.
America is paying a lot more than "developing" countries like China and other countries in the Paris Climate Accord. Your argument is that foreigners want America in the agreement to take advantage of America.
Why should the wants of other countries be what is best for America?
https://www.heritage.org/testimony/paris-climate-promise-bad-deal-america"The funding required by the Paris Agreement will be significant and continuing. The principal depository for such funds is the Green Climate Fund (GCF), which assists developing countries in adapting to climate change. The GCF was established by the 2009 Copenhagen Accord, which committed developed countries by 2020 to provide $100 billion per year, every year, seemingly in perpetuity.[9] The Paris Agreement obligates developed countries such as the U.S. to “provide financial resources to assist developing country Parties with respect to both mitigation and adaptation.”[10] In the decision adopting the Paris Agreement, the COP-21 set the goal of these funds at “a floor of USD 100 billion per year.”[11] Only developed nations like the U.S. are obligated to contribute to the GCF, while developing nations are “encouraged” to make “voluntary” contributions.[12]
Sen. Barrasso-
https://www.usatoday.com/story/opinion/2019/11/05/president-trump-leave-bad-paris-agreement-john-barrasso-editorials-debates/4170938002/"According to the National Economic Research Associates, if we met all of our commitments as part of the Paris climate agreement, it would cost the American economy $3 trillion and 6.5 million industrial sector jobs by 2040. We don’t need to cripple our economy to protect our environment."
"As the climate deal punished America’s energy producers with expensive and burdensome regulations, it gave other countries U.S. taxpayer-funded subsidies and generous timelines.
Countries like China got a free pass to pollute for over a decade. With abundant low-cost coal, China and India would put our manufacturers at a huge competitive disadvantage. Economic costs would be severe."