Most recently she responded to allegations from multiple female journalists who accused one of Pletnyova's male colleagues of sexually assaulting them by saying they should dress more conservatively, or quit their jobs if they feel unsafe.
Tamara Pletnyova, head of the family, women and children's affairs committee, argued that even if these relationships led to marriage, women or their children would inevitably be taken overseas by the man. Pletnyova's fear stems from a group of single mothers raising children conceived during the 1980 Olympic Games held in Moscow during the era of the Soviet Union. She added that, even if Russian women get married to their foreign partners after giving birth, they could end up living overseas with their spouses and have no idea how to return home.
Asked if the World Cup could boost Russia's birth rate - a key goal for President Vladimir Putin - Pletneva replied: "We should be giving birth to our own children". "They've suffered in the past, since the Soviet period". "If it's another race, then it's even worse", the member of the Communist Party said.
Stating that she was "not a nationalist", Pletnyova added, 'nonetheless, I know how children suffer later on. They are being dumped and this is it.
She said that children risked being "abandoned and just left with their mother;" or, alternatively, being taken overseas by their fathers, urging women to marry "Russian citizens".
"Then they come to me at the committee and cry that the child was taken away, removed, and so forth".
Pletnyova cautioned that even if a Russian woman married the foreign father of her child, problems could still arise if they become estranged.
'I would have liked people in our country marry for love, regardless of nationality'. Women are often stranded overseas or in Russian Federation but unable to get their children back, she said.
Couples should 'both be citizens of Russian Federation who build a good family, live peacefully and in a friendly way and bring up children together, ' she went on.
Her comments drew criticism and ridicule.
The FIFA 2018 World Cup kicks off when hosts Russian Federation take on Saudi Arabia at Luzhniki Stadium on Thursday.
Pletnyova previously criticised the #MeToo campaign against sexual harassment, tentatively spreading in Russian Federation. Why should we copy everything?
She said in March, "Those who get harassed are probably the ones who want it themselves and give the occasion for it".