i have used seealldata=true for my test class below, its cover 100% and no failure. my question here is can we use seealldata= true for production deployement too? When i remove the sealldata=true in test class, code coverage is 100% but having 130+ failure. see below screenshot. 

Batch Apex:

global class EmailBounceBatchApex implements Database.Batchable<sobject>{
    global Database.QueryLocator start(Database.BatchableContext bc) {
        string query = 'SELECT Id,Name from Lead where EmailBouncedDate!=Null AND EmailBouncedReason!=Null';
        return Database.getQueryLocator(query);
    }
    global void execute(Database.BatchableContext bc, List<Lead> Scope) {
        for(Lead l:Scope){
            
                l.Status = 'Disqualified';
                l.Reason_for__c = 'Inadequate Data';
                
           }
            update scope;
    
    }
    global void finish(Database.BatchableContext bc) {
                }
}

TestClass:

@isTest
public class EmailBounceBatchApexTest {
    Public Static testmethod void BounceTest() {      
        Lead testLead = new Lead();
        testLead.LastName = 'Test';
        testLead.Company ='ABC';
        testLead.Email='trd@gmail.com';
        testLead.Phone='1234567890';
        insert testLead;
   
        testLead.EmailBouncedDate = system.today();
        testLead.EmailBouncedReason ='email address was not valid';
        update testLead;
        
       Campaign camp1 = new Campaign();
        camp1.Name = 'Test Campaign 1';
        camp1.IsActive = True;
        insert camp1;
      
      CampaignMember testMember = new CampaignMember(LeadId =testLead.Id, CampaignId =camp1.id, Status = 'Sent');
        insert testMember;
        EmailBounceBatchApex bc = new EmailBounceBatchApex();
        database.executeBatch(bc);
            
        }
}