I'd like to expand on what you said here by showing exactly what scripture indicates will happen to those, like the foolish virgins, who say "Lord, Lord, open to us" when Jesus comes again. Pretribbers claim that such people will be allowed to continue living during a time of tribulation after that. At least one pretribber claims that these people like the foolish virgins are saved despite Jesus telling them He doesn't know them. What? Jesus would never say that to a saved person.
So, what will happen to people like the foolish virgins who say "Lord, Lord, open to us" when He comes?
Matthew 25:10 And while they went to buy, the bridegroom came; and they that were ready went in with him to the marriage: and the door was shut. 11 Afterward came also the other virgins, saying, Lord, Lord, open to us. 12 But he answered and said, Verily I say unto you, I know you not.
Again, we can see here that Jesus will tell them that He doesn't know them.
Luke 13:25 When once the master of the house is risen up, and hath shut to the door, and ye begin to stand without, and to knock at the door, saying, Lord, Lord, open unto us; and he shall answer and say unto you, I know you not whence ye are: 26 Then shall ye begin to say, We have eaten and drunk in thy presence, and thou hast taught in our streets. 27 But he shall say, I tell you, I know you not whence ye are; depart from me, all ye workers of iniquity. 28 There shall be weeping and gnashing of teeth, when ye shall see Abraham, and Isaac, and Jacob, and all the prophets, in the kingdom of God, and you yourselves thrust out.
Here again, as in the parable of the ten virgins, we can see that Jesus, when He returns, will tell people who say "Lord, Lord, open to us" that He doesn't know them. But, now we have an added detail here showing what will happen to them at that point that isn't shown in the parable. Those people will be "thrust out" to where there is "weeping and gnashing of teeth" at that point. That doesn't seem like they are given another chance as pretribs claim.
Matthew 13:40 “As the weeds are pulled up and burned in the fire, so it will be at the end of the age. 41 The Son of Man will send out his angels, and they will weed out of his kingdom everything that causes sin and all who do evil. 42 They will throw them into the blazing furnace, where there will be weeping and gnashing of teeth. 43 Then the righteous will shine like the sun in the kingdom of their Father. Whoever has ears, let them hear.
Jesus will return at the end of the age and He said that at the end of the age is when unbelievers will be cast into the fire "where there will be weeping and gnashing of teeth". Clearly, people like the foolish virgins will not be given another chance when He returns but instead will be condemned to the lake of fire! You know pretrib is a horrible doctrine when it teaches that people will get another chance to repent when Jesus comes when in reality there time will have run out at that point and they will not get any more chances.
If Jesus doesn't know someone when He comes, including those who say "Lord, Lord, open to us", this is what will happen to them:
2 Thessalonians 1:7 And to you who are troubled rest with us, when the Lord Jesus shall be revealed from heaven with his mighty angels, 8 In flaming fire taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ: 9 Who shall be punished with everlasting destruction from the presence of the Lord, and from the glory of his power; 10 When he shall come to be glorified in his saints, and to be admired in all them that believe (because our testimony among you was believed) in that day.
He will not be giving them another chance, He will be taking vengeance on them and they will be separated from His presence forever.