"Syčák" is a Czech surname, so it is likely of Czech nationality.
'Sychak' does not appear to be a common or recognizable name in any particular culture or language. It could be a unique or uncommon surname or a creative or invented name.
Your nationality would be Dutch if you were born in Holland.
Bad attitude has no nationality, it is a human trait. All human populations have people that have good and bad attitudes, personalities and behaviors; some individuals have more of one and less of the other. Most of us humans are some combination. To believe that a specific nationality has the 'most bad attitude' is a very bad attitude indeed.
I have not had this experience having met several thousand people over many decades. If someone did introduce them self to me including their religion or nationality, it would lead me to believe that they considered that an important part of who they are, of how they see themselves.
Attraction is subjective and varies from person to person. It's unfair to generalize based on nationality.
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Nicole Sychak & Michelle Sychak
Nicole Sychak & Michelle Sychak
Bret Michael Sychak
Michaels was born Bret Michael Sychak to Marge and Wally Sychak. He also has two sisters, Michelle and Nichole.
According to a websearch there's a Wally Sychak living in Camp Hill PA.
"Sychak" does not appear to be a Polish surname. It is not commonly found in Poland or associated with Polish heritage.
'Sychak' does not appear to be a common or recognizable name in any particular culture or language. It could be a unique or uncommon surname or a creative or invented name.
Bret Michael Sychak
Nationality: American.
Bret has two daughters: Raine Elizabeth Sychak and Jorja Bleu Sychak
Bret Michaels (Bret Michael Sychak) was born March 15, 1963. He has two daughters with Kristi Lynn Gibson. Raine Elizabeth Sychak was born on May 20, 2000. Jorja Bleu Sychak was born May 5, 2005. The daughters have also used the surname "Michaels."