I fail to see the resemblance, the songs sound nothing alike. One is very much of its time, with that new jack swing sound. "Formation" is hip hop inspired. As for the videos, they're also unrelated.
Beyoncé's promoting the union of women, black women in America especially, foretelling the Women's March movement for example.
Okay, ladies, now let's get in formation, 'cause I slay
Prove to me you got some coordination, 'cause I slay
Slay trick, or you get eliminated
"Rhythm Nation"s message is more universal, to a more inattentive person it's just another fun dance pop track.
But I'd love to read your reasoning.
"You are Beyoncé!"
♕ "Thank You."