I know reading comprehension isn't everyone's strong suit, especially if English is a second language, so I'll try to clarify.

The world used to fear Russia. NATO was created to counter Russia. Now, Russia is so incompetent they couldn't even defeat just one country in NATO, Poland, much less the entire alliance. Therefore, the NATO countries have nothing to fear from Russia should Russia decide to take the war from Ukraine to NATO. This implies Russia is a paper tiger, was bluffing, and is far less powerful than anyone feared.

Hope that helps!