Will attacking Iran save US Empire?

The United States (US) feels that it must do drastic things to try to save its empire. Among them is to try to coup the government of the Islamic Republic of Iran. Iran has warned the US that any attack on her will elicit a response with everything that she has. Will this be another blowback that will only accelerate the US' decline? Please click on this link for more: https://youtu.be/89PJWJC_3sQ

It is important to mention that the People's Republic of China and the Russian Federation are allies of Iran, and fully understand that the US is trying to weaken them through Iran. Can the US beat all three of them militarily?

The US has been the main stumbling block against democracy since its existence. The most dramatic proof of that is the fact that almost 40 million Americans are living in poverty, and 201 million more are living from paycheck to paycheck, while 9 of the 10 richest men in the world are also Americans. Since not all US citizens are white anglo saxon protestant men, only 35% of Americans are satisfied with their multiparty "democratic" political system.

Moreover, Puerto Rico, inhabited by an "inferior race", has been a US colony for the past 128 years. The US has consistently refused to comply with 43 United Nations resolutions demanding the immediate return of Puerto Rico's sovereignty to the Puerto Ricans. 6 million Puerto Ricans have abandoned their national territory (gentrification), and almost half of the 3 million people in Puerto Rico also live in poverty.

The US is the biggest threat to peace, despite its recent circus act about heading the so-called "Board of Peace". The US Empire will inevitably defeat itself. 

Will the world survive the US' self-destruction?