At the same time, he expressed an opinion that the US is able to "do foolish things" only to a certain extent.
"We must proceed from the fact that no one can ignore Russia's weight, and, of course, the Americans will take this into account. That's why they can be rude and do stupid things — but only to a certain extent, because there are boundaries that are unlikely to be completely ignored," Vavilov said.
Russian Foreign Ministry spokeswoman Maria Zakharova said Sunday that September 2, the day when the Russian Trade Representation building in Washington, DC, was searched by US law enforcement agencies, was "a black day in the history of US democracy."
The diplomat also expressed her indignation, saying that US law enforcement agencies were looking for explosive devices in the compounds, which, in her opinion, was an unjustified move driven by several years of anti-Russian rhetoric, peddled in the United States.
According to Vavilov, the fact that the US authorities searched for explosives in the Russian diplomatic compounds is one of the funniest things he ever heard.
"Now they talk about explosives, next time they will look for an atomic bomb, and then they'll think of something else. Could any rational person really think that there are explosives in a trade mission, which is created exactly for the development of relations and mutual contacts. It's ridiculous," Vavilov said.
The expert is confident that the Russian side will respond to the US move, although Moscow won't be in a hurry to do so.
"We won't jump off the deep end — why should we? The whole world can see that the actions of the US side are just hysteria, but we reserve our right [to respond], and this right is justified by all international laws and provisions," the expert concluded.
The US State Department said on Thursday that Washington demanded that Moscow close down its consulate general in San Francisco and two other diplomatic entities in New York City and Washington, DC by Saturday.
Washington's move came after Moscow announced in July that the diplomatic presence of the United States in Russia would be scaled down by 755 people to 455, the same number of diplomatic personnel Russia has in the United States since late 2016, when 35 Russian diplomats were expelled from the United States.
Ryabkov also noted that the recent developments required further reflection and Russia would not rush into retaliatory measures, adding that it was difficult to respond to actions taken by "hooligans."