If our churches are split along generational lines it's because we've turned our backs to the cross. We've shut our ears to the Good News about Jesus Christ, who judges the world with equity.
When God's Word went to the cross and made full payment for all our sinful, self-serving, self-seeking activities, and then rose from the dead, Jesus added an "always and forever" to our days and life.
Instead of remaining silent when we wonder if someone is struggling with suicidal thoughts, and rather than judging for ourselves whether or not suicide is an unforgivable sin, let's lean on God's Word.